So we've got 2 kittens, now 3 months old and had them for about 6 weeks. Two gorgeous girls, both settled and very happy. They have their own room, and I've been cautious about integrating them with our resident cat.
Resident cat is 5 years old, feisty tortie with an attitude. She managed fine with our previous cat who died two years ago, they weren't friends but got along ok.
I've followed all the advice I could find about integrating them, we've used a mesh stairgate between the kitten room and the rest of the house. When the cats see each other resident girl hisses once or twice, sometimes growls, and sometimes rushes the gate to swipe at the kittens before running away. Once of the kittens is very shy and after a few occasions of this will now not go into the corridor where the gate is and stays solely in her room. The other kitten is much bolder and desperate to explore the rest of the house despite resident cat's presence.
We've been doing this for some weeks now and no progress. I'm reluctant to let them have proper access to each other in case resident cat tries to hurt them (I'm not sure she would but...). I just don't know what the next step is.
Any advice please on what to do now?